Exam 10: Patterns of Inheritance

Morgan breeds and sells snakes.He knows that he can make the most money by breeding and selling albino snakes.Albinism is a recessive trait.His female albino corn snake just produced six offspring.Two displayed normal coloration and four were albino.What do you know about the genotype of the baby snakes with the normal coloration?

Hydrangeas are a flowering plant with large showy blooms.When a plant is grown in aluminum rich soil it has blue flowers; if the same plant is transplanted into soil that is lacking aluminum the flowers produced will be pink.This is an example of

Referring to the figure shown here,which of the following are homologous chromosomes?

In a dihybrid cross where both parents are heterozygous,the phenotypic ratio is

Martha has a widow's peak and attached earlobes.Martha's dad had a straight hairline and unattached earlobes.What is Martha's genotype?

Alleles that are linked on the same chromosome will assort independently during Meiosis.

A woman with Type AB blood marries a man with Type B blood.If they have children,what are all the possible blood types for these individuals?

Unattached earlobes (EE or Ee)are dominant over attached earlobes (ee).A couple both have unattached earlobes.Both notice that one of their parents on both sides have attached earlobes (ee).Therefore,they correctly assume that they are carriers for attached earlobes (Ee).If the couple proceeds to have four children,then

What does true-breeding mean?

A long-winged Drosophila female with a gray body mates with a black,short-winged male fly.The phenotypic ratio of the offspring is 1:1:1:1.What is the genotype of the female fly?

The outcome of a genetic cross involving eye color and body type is predicted to have a 25%: 25%: 25%: 25% ratio.When bred the organisms produced offspring with the following ratio 45%: 45%: 3%: 3%.These results are most likely due to:

Traits that are controlled by several sets or pairs of alleles,such as skin color and height in humans,are the result of what form of inheritance?

What are all possible gametes that can be produced by an individual with the following genotype,FFGg?

Parents with the dominant phenotype cannot have offspring with the recessive phenotype.

A heterozygote for a trait exhibiting incomplete dominance will

What genetic disorder is associated with the lack of an enzyme necessary for the normal metabolism of the amino acid phenylalanine?

Which of the following is an autosomal dominant disorder?

The allele for white eyes is located at loci 12 while the allele for hairy body is located at loci 16 on one chromosome.The allele for red eyes is located at loci 15 while the allele for normal body is located at loci 17 on a second chromosome.Which allele combination has the greater map distance?

A couple has three children,two of which have blonde hair.The third child and both parents have dark hair.What can be determined about the gene for hair color in this family?

Cold weather can change what aspect of a Himalayan rabbit?